[PEPPo] Daily RC Report 5/24

Joe Grames grames at jlab.org
Thu May 24 17:33:55 EDT 2012


  *Daily RC Report 5/24:*
Source calibration of the Compton and Annihilation detectors proceeded 
successfully yesterday.  This morning the final 2B alignment of PEPPo 
beam line was completed.  The preliminary report is that all elements 
are in very good alignment, generally meaning better than ~0.1mm in X, 
Y.  We'll get a preliminary survey transmittal ASAP and final 
thereafter; if certain values are needed immediately please let me 
know.  Gross design values can be taken from drawings on wiki and 
as-founds w/ handy tape measure in the interim.  This afternoon 
annihilation detector checkout continued and majority of beam line lead 
shielding (1/8" sheet and lead shot) have been placed.  As of now 
Operations the INJ/NL are in beam permit and injector elements needed 
for PEPPo are being turned on.  We'll collect a punchlist of repair 
items which will likely be addressed following the Friday 8am meeting.  
Beyond repairs please bring to my attention any tasks in tunnel, ISB, 
DAQ not captured below.

*Noteworthy items:*
1. We're at the precipice of the PEPPo experiment - good luck to everyone!
2. Before Friday 7am move shielding/materials you want access to 
upstream of injector gate, for quicker access.
3. Daily RC meeting is 3:30pm in MCC control room.  If you have 
something to show tomorrow post it here:
https://positron.jlab.org/wiki/index.php/Fri%2C_May_25%2C_2012_%28Grames%29

*Next 24 hours:*

    _Thursday, 5/24 - SWING_

        * INJ/NL in Beam Permit for HCO until ~1900
        * Cs & Co source calibration of Compton NaI detectors
        * Mount annihilation counters w/ more shielding on beam line
        * Complete cabling of fiber array detector
        * Add shielding house for future TS1 (trigger) and E1 (energy)
          scintillator detectors

    _Friday, 5/25 - OWL_

        * No planned work

    _Friday, 5/25 - DAY (SHIFT LEADER = Matt Poelker)_

        * INJ/NL will be locked up ~early
        * Anticipate ~2 hours of INJ controlled access for repairs,
          followed by beam recover to FC2
        * Complete Task CB03 - recover beam to FC2, setup longitudinal
          polarization, checkout new viewer ITV5D03, solenoid MPT5D04
          and collimator current monitoring w/ beam ISCxxx.
        * Complete Task CB11 - Calibrate BCM0L02 against FC2, setup BCM
          receiver gain and FSD thresholds
        * Calibrate T2 (electrometer) & PEPCUP (picoammeter) against one
          another and FC1

    _Friday, 5/25 - SWING (SHIFT LEADER = Arne Freyberger)_

        * Complete Task CB06 - Study 0L orbit vs QS-quad, QJ-quad,
          MBV-dipole, cryounit gradient to learn good "straight-ahead orbit"
        * Complete Task CB05 - Perform quad centering of 0L01, 0L02,
          0L02A, 0L03, 0L03A, 5D00, 5D01


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